Hi All Has anyone experienced or got any of Canton's subwoofers? Of particular interest is the KARAT Series AS 200 SC (looks like an SVS sub). I am currently in the market for a sub to partner Kef Q4, Q6c, Q1 compacts. These are driven by Hk's 507le. I have booked time to demo some RELs and Kefs. My budget can be stretched to £450. Any help will be greatly appreciated. Steve.